I'm positive that there has been discussion concerning this topic, but failed to find it by search. Several of my E* friends, as well as myself, find that when selecting a HD channel and setting volume to a normal level, that when a SD channel is chosen, the volume level is higher. If the tv is used for the audio source and offers a limiter circuit, the problem is less noticeable. Trying to feed the audio thru an amplifier makes this a greater problem. It seems like all of the VIP models have this level difference whether DD or composite output is fed to the amp. Has there been a suggestion, previously posted, that answers this situation?